Acid Sulfate Management Plan · MCU16/0103

                                                               HOLDING TIME SUMMARY                                                                    BE018333 R0



     SGS holding time criteria are drawn from current regulations and are highly dependent on sample container preservation as specified in the SGS “Field Sampling Guide for
     Containers and Holding Time” (ref: GU-(AU)-ENV.001). Soil samples guidelines are derived from NEPM "Schedule B(3) Guideline on Laboratory Analysis of Potentially
     Contaminated Soils". Water sample guidelines are derived from "AS/NZS 5667.1 : 1998 Water Quality - sampling part 1" and APHA "Standard Methods for the Examination
     of Water and Wastewater" 21st edition 2005.

     Extraction and analysis holding time due dates listed are calculated from the date sampled, although holding times may be extended after laboratory extraction for some
     analytes. The due dates are the suggested dates that samples may be held before extraction or analysis and still be considered valid.

     Extraction and analysis dates are shown in Green when within suggested criteria or Red with an appended dagger symbol (†) when outside suggested criteria. If the sampled
     date is not supplied then compliance with criteria cannot be determined. If the received date is after one or both due dates then holding time will fail by default.



Alkalinity                                                                                                                                              Method: ME-(AU)-[ENV]AN135
 Sample Name                      Sample No.     QC Ref            Sampled            Received         Extraction Due        Extracted        Analysis Due          Analysed
 4956-161011-GW1                  BE018333.001   LB028678          11 Oct 2016        13 Oct 2016        12 Oct 2016        13 Oct 2016†        12 Oct 2016        14 Oct 2016†



Chloride by Discrete Analyser in Water                                                                                                                  Method: ME-(AU)-[ENV]AN274
 Sample Name                      Sample No.     QC Ref            Sampled            Received         Extraction Due        Extracted        Analysis Due          Analysed
 4956-161011-GW1                  BE018333.001   LB028711          11 Oct 2016        13 Oct 2016        08 Nov 2016         17 Oct 2016        08 Nov 2016         17 Oct 2016



Metals in Water (Dissolved) by ICPOES                                                                                                            Method: ME-(AU)-[ENV]AN320/AN321
 Sample Name                      Sample No.     QC Ref            Sampled            Received         Extraction Due        Extracted        Analysis Due          Analysed
 4956-161011-GW1                  BE018333.001   LB028720          11 Oct 2016        13 Oct 2016        09 Apr 2017         17 Oct 2016        09 Apr 2017         18 Oct 2016



Sulphate in water                                                                                                                                       Method: ME-(AU)-[ENV]AN275
 Sample Name                      Sample No.     QC Ref            Sampled            Received         Extraction Due        Extracted        Analysis Due          Analysed
 4956-161011-GW1                  BE018333.001   LB028710          11 Oct 2016        13 Oct 2016        08 Nov 2016         17 Oct 2016        08 Nov 2016         17 Oct 2016



Trace Metals (Dissolved) in Water by ICPMS                                                                                                              Method: ME-(AU)-[ENV]AN318
 Sample Name                      Sample No.     QC Ref            Sampled            Received         Extraction Due        Extracted        Analysis Due          Analysed
 4956-161011-GW1                  BE018333.001   LB028721          11 Oct 2016        13 Oct 2016        09 Apr 2017         17 Oct 2016        09 Apr 2017         18 Oct 2016




21/10/2016                                                                                                                                                               Page 2 of 9